1

2349 4212 / 2349 27722348 3968Website http://www.studenthealth.gov.hk

English version is available on our website.

(

2008106)

3

2

UV-ultra-violet light

()

(:http://www.hko.gov.hk/wxinfo/uvindex/chinese/cwhatisuv.htm)

AB CABCC

BAB

A B C () 315 400 280315 100280

A

A B

( 1 = 0.000000001 1x10-9 )

(:http://www.hko.gov.hk/wxinfo/uvindex/chinese/cwhatisuv.htm)

(2007

http://www.hko.gov.hk/wxinfo/uvindex/chinese/uvi_c.pdf)

1011

(http://www.hko.gov.hk/wxinfo/uvindex/chinese/cwhatisUVI.htm#)

3

14

12

10

8

6

4

2

05 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

4

(World Health Organization, WHO) 1.2 1.5()(3)(http://www.who.int/uv/health/en/)

99100ABUV400UV400400AB

10-30% 10%

()()

5

UV400

A B UV400(1878200)

6

:E

for protect ing our e y e s , w e s h o u l d not look at the sun directly, even wearing sunglasses

Game Over

12

639

we should use sunglasses in sunny days

7

3030455http://www.studenthealth.gov.hk/tc_chi/health/health_ev/health_ev_nea.html

8

1 40

A.

B. C.

D. E.

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1 40

1 40

1 40